Fastens
v. （使两物）系牢( fasten的第三人称单数 ); 系紧; 使牢固; （使）关紧
🗣️ 情景例句
When you see a new word, look it up.
当你看到一个新的字时就去查阅它。
The worst traffic condition of the town
镇上最拥挤的交通状况
In fact a basic amount of movement occurs during sleep which is specifically concerned with preventing muscle inactivity.
事实上，睡眠状态下仍有着基本的活动量，以防止肌肉活动停止。